Split UNPACKING_FAILED exit code out from UNCOMPRESSION_FAILED.

To ease failure diagnosis.

BUG=385421
R=gab@chromium.org

Review URL: https://codereview.chromium.org/338273002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@277780 0039d316-1c4b-4281-b951-d872f2087c98

chrome/installer/setup/setup_main.cc

@@ -1468,10 +1468,10 @@ InstallStatus InstallProductsHelper(
                               unpack_path.value(),
                               NULL)) {
     installer_state.WriteInstallerResult(
-        UNCOMPRESSION_FAILED,
+        UNPACKING_FAILED,
         IDS_INSTALL_UNCOMPRESSION_FAILED_BASE,
         NULL);
-    return UNCOMPRESSION_FAILED;
+    return UNPACKING_FAILED;
   }
 
   VLOG(1) << "unpacked to " << unpack_path.value();

chrome/installer/util/util_constants.h

@@ -92,13 +92,15 @@ enum InstallStatus {
   CPU_NOT_SUPPORTED,           // 54. Current OS not supported
   REENABLE_UPDATES_SUCCEEDED,  // 55. Autoupdates are now enabled.
   REENABLE_UPDATES_FAILED,     // 56. Autoupdates could not be enabled.
+  UNPACKING_FAILED,            // 57. Unpacking the (possibly patched)
+                               // uncompressed archive failed.
 
   // Friendly reminder: note the COMPILE_ASSERT below.
 };
 
 
 // Existing InstallStatus values must not change.  Always add to the end.
-COMPILE_ASSERT(installer::REENABLE_UPDATES_FAILED == 56,
+COMPILE_ASSERT(installer::UNPACKING_FAILED == 57,
                dont_change_enum);
 
 // The type of an update archive.